Synchronous parallel connected motor

Abstract

The utility model discloses a synchronous parallel conjoined motor, comprising: a conjoined stator having at least one symmetry axis and a plurality of stator parts symmetrically arranged about the symmetry axis; each stator part comprises a stator yoke with an incomplete annular form and a cavity arranged in the stator yoke; the plurality of rotors are arranged in the cavities of the corresponding stator parts; every two parallel adjacent rotors do not make direct contact, so that an air gap exists between the two rotors along the symmetry axis of every two parallel different stator parts. And the magnetic isolation assemblies are distributed at the air gaps along the symmetric axes of every two parallel different stator parts, so that the magnetic fields of every two parallel adjacent rotors are separated. According to the utility model, mutual interference of magnetic fields of two parallel adjacent rotors can be prevented so as to eliminate reverse torque.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a synchronous parallel connected motor. Background Art

[0002] The dual-rotor synchronous parallel conjoined motor generally comprises a conjoined stator and two rotors. For example, the conjoined stator and synchronous parallel conjoined motor disclosed in CN116260301A have at least one symmetry axis and a plurality of stator parts symmetrically arranged about the symmetry axis, and each stator part corresponds to a rotor.

[0003] Based on the above-mentioned published technology, for example, two symmetrically arranged stator parts are used, that is, corresponding to two rotors. In this case, the two rotors can rotate counterclockwise synchronously or rotate in phase. Since the two rotors are arranged in parallel, the two rotors repel each other. At this time, the magnetic flux directions of the two rotors are uncertain, and the magnetic field becomes unstable, causing the dual-stator parallel DC brushless motor to generate reverse torque, resulting in unstable motor operation, noise and other problems.

[0004] Therefore, for the existing parallel DC brushless motor, in order to prevent the magnetic fields of two adjacent rotors from interfering with each other and eliminate the need for reverse torque, its structure needs to be further optimized and improved. Utility Model Content

[0005] The utility model aims to provide a synchronous parallel connected motor to solve the technical problem of preventing the magnetic fields of two adjacent rotors from interfering with each other to eliminate the reverse torque.

[0006] The synchronous parallel conjoined motor of the utility model is realized as follows:

[0007] A synchronous parallel conjoined motor, comprising:

[0008] A one-piece stator having at least one symmetry axis and a plurality of stator parts symmetrically arranged about the symmetry axis; each stator part comprises a stator yoke having an incomplete annular form and a cavity arranged in the stator yoke;

[0009] A plurality of rotors are arranged in the cavities of the corresponding stator parts; each parallel adjacent two rotors are not in direct contact, so that an air gap exists between the two rotors along the symmetry axis of each parallel two different stator parts;

[0010] The magnetic isolation components are distributed at the air gap along the symmetry axes of two different stator parts in parallel to separate the magnetic fields of two adjacent rotors in parallel.

[0011] In an alternative embodiment of the present utility model, the magnetic isolation component is made of a soft magnetic material with high magnetic permeability and is continuously distributed at the air gap along the symmetry axis of every two parallel and different stator parts.

[0012] In an alternative embodiment of the present utility model, the stator yoke is formed by stamping and stacking silicon steel sheets; and

[0013] The magnetic isolation component adopts a magnetic isolation plate; the magnetic isolation plate covers the air gap.

[0014] In an alternative embodiment of the present utility model, the stator yoke is formed by stamping and stacking silicon steel sheets; and

[0015] The magnetic isolation component adopts a magnetic isolation plate; the magnetic isolation plate includes a main plate body located in the middle area of the air gap, and a pair of magnetic isolation notches located on both sides of the main plate body along the extending direction of the symmetry axis of two different stator parts.

[0016] In an alternative embodiment of the present utility model, the length of the main plate body along the extending direction of the symmetry axis of two different stator parts is not less than one-sixth of the air gap length.

[0017] In an alternative embodiment of the present utility model, a pair of stator grooves for inserting the magnetic isolation plate are provided at the connection area of every two parallel and different stator parts.

[0018] In an alternative embodiment of the present utility model, the synchronous parallel-connected integrated motor further includes a pair of end covers located at two axial ends of the integrated stator; and

[0019] At least one end cover is provided with slots for inserting the magnetic isolation plate at the side end face facing the integrated stator corresponding to the air gap.

[0020] In an alternative embodiment of the present utility model, the magnetic isolation component is made of a soft magnetic material with high magnetic permeability and is discontinuously distributed at the air gap along the symmetry axis of every two parallel and different stator parts.

[0021] In an alternative embodiment of the present utility model, the magnetic isolation component includes multiple magnetic isolation rods arranged at intervals; the length of each magnetic isolation rod is not greater than the axial height of the rotor; and

[0022] The multiple magnetic isolation rods are arranged at equal intervals; or the arrangement density of the multiple magnetic isolation rods gradually decreases from the middle area of the air gap to both sides.

[0023] In an alternative embodiment of the present utility model, the synchronous parallel-connected integrated motor further includes a pair of end covers located at two axial ends of the integrated stator; and

[0024] At least one end cover is provided with multiple jacks for inserting the magnetic isolation rods at the side end face facing the integrated stator corresponding to the air gap.

[0025] With the above technical solution, the utility model has the following beneficial effects: For the synchronous parallel connected motor of the utility model, there is an air gap between every two adjacent rotors in parallel along the symmetry axis of every two different stator parts in parallel. Through the magnetic isolation components distributed at the air gap, the magnetic fields of every two adjacent rotors in parallel are separated, so as to prevent the magnetic fields of two adjacent rotors from interfering with each other, eliminate the reverse torque, improve the motor efficiency, and reduce the running noise of the motor. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of the synchronous parallel connected motor of the utility model without the magnetic isolation components assembled.

[0027] Figure 2 It is a schematic structural diagram of the synchronous parallel connected motor of the utility model with the magnetic isolation components assembled.

[0028] Figure 3 It is a schematic structural diagram of the magnetic isolation components of the synchronous parallel connected motor in Embodiment 1 adopting magnetic isolation plates.

[0029] Figure 4 For the corresponding Figure 3 magnetic field simulation diagram of the structure;

[0030] Figure 5 For the corresponding Figure 3 torque comparison diagram of the synchronous parallel connected motor with magnetic isolation plates and the motor without magnetic isolation structure of the corresponding structure;

[0031] Figure 6 It is a schematic structural diagram of the magnetic isolation components of the synchronous parallel connected motor in Embodiment 1 adopting magnetic isolation plates with notches.

[0032] Figure 7 For the corresponding Figure 8 magnetic field simulation diagram of the structure;

[0033] Figure 8 It is a schematic assembly and fixation diagram of the magnetic isolation components of the synchronous parallel connected motor in Embodiment 1 in one implementation manner.

[0034] Figure 9 It is a schematic assembly and fixation diagram of the magnetic isolation components of the synchronous parallel connected motor in Embodiment 1 in another implementation manner.

[0035] Figure 10 It is a schematic structural diagram of the end cover of the synchronous parallel connected motor in Embodiment 1 designed with slots.

[0036] Figure 11 It is a schematic structural diagram of the magnetic isolation components of the synchronous parallel connected motor in Embodiment 1 adopting magnetic isolation rods.

[0037] Figure 12 Schematic structural diagram of the end cover of the synchronous parallel connected motor in Embodiment 2 with jacks

[0038] Figure 13 For corresponding Figure 11 Magnetic field simulation diagram of the structure

[0039] Figure 14 For corresponding Figure 11 Torque comparison diagram of the synchronous parallel connected motor with a magnetic isolation plate and the motor without a magnetic isolation structure corresponding to the structure

[0040] In the figure: symmetry axis K, gap M, stator yoke 11, cavity 12, stator tooth 13, winding slot 15, rotor 2, magnetic isolation plate 3, main board body 41, notch 42, stator groove 5, slot 6, magnetic isolation rod 7, end cover 8, jack 9 Specific embodiments

[0041] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments and in conjunction with the drawings

[0042] Embodiment 1

[0043] Please refer to Figures 1 to 10 As shown, this embodiment provides a synchronous parallel connected motor, including: a connected stator and a rotor 2, and the rotor 2 is arranged in a cavity 12 inside the connected stator

[0044] The connected stator adopted in this embodiment has at least one symmetry axis K and a plurality of stator parts symmetrically arranged with respect to the symmetry axis K. Each stator part includes a stator yoke 11, a cavity 12, a stator tooth 13, and a winding slot 15. The drawings herein only schematically show the cross-section of the synchronous parallel connected motor, and the connected stator and the rotor 2 both extend in a direction perpendicular to the plane of the drawing

[0045] It should be noted that for the connected stator of this embodiment, it can be two stator parts or four stator parts. When designed as four stator parts, the four stator parts generally form a square structure, and at this time, the four stator parts form two symmetry axes K distributed orthogonally. Next, this embodiment will specifically describe only the case of designing two stator parts, that is, only having one symmetry axis K, in conjunction with the drawings

[0046] The stator yoke 11 has an incomplete annular form, for example Figure 1A ring missing an arc segment. The cavity 12 is disposed within the stator yoke 11, and each stator portion has its own cavity 12. The stator teeth 13 extend from the inner wall of the stator yoke 11 towards the center of the cavity 12, for example having a T-shaped cross-section, and are evenly distributed on the inner wall of the stator yoke 11. The winding slots 15 are arranged between two adjacent stator teeth 13 along the inner wall of the stator yoke 11 and are evenly distributed on the inner wall of the stator yoke 11. Due to the symmetrical arrangement on the left and right, the number of stator teeth 13 in each stator portion is the same, and the number of winding slots 15 is also the same.

[0047] Furthermore, a rotor 2 is disposed within the cavity 12 of each stator portion, and for two adjacent stator portions in parallel, the corresponding two adjacent rotors 2 in parallel can rotate synchronously counterclockwise. In this embodiment, the two adjacent rotors 2 in parallel always maintain in-phase rotation.

[0048] It should be further noted that the corresponding two adjacent rotors 2 in parallel do not directly contact each other, so that there is an air gap M between the two rotors 2 along the symmetry axis K of every two different stator portions in parallel. The air gap M here can ensure that different rotors 2 do not directly contact each other and adjust the magnetic field strength between the rotors 2.

[0049] Based on the above structure, it should also be noted that in order to separate the magnetic fields of every two adjacent rotors 2 in parallel, thereby preventing the magnetic fields of two adjacent rotors 2 from interfering with each other to eliminate the reverse torque, in this embodiment, a magnetic isolation component is designed at the air gap M along the symmetry axis K of every two different stator portions in parallel to separate the magnetic fields of every two adjacent rotors 2 in parallel.

[0050] For the magnetic isolation component, in an optional case in this embodiment, the magnetic isolation component is made of a high-permeability soft magnetic material (the high-permeability soft magnetic material can be, for example, one or more of iron-silicon alloy (silicon steel sheet), pure iron, low-carbon steel, permalloy, or ferrite), and is continuously distributed at the air gap M along the symmetry axis K of every two different stator portions in parallel. The continuous distribution here means that the magnetic isolation component is an integral structure and is installed as a whole piece into the air gap M.

[0051] Based on the above situation, more specifically, a first optional implementation is given by way of example in conjunction with the accompanying drawings: the stator yoke 11 is formed by stamping and stacking silicon steel sheets; and the magnetic isolation assembly adopts a magnetic isolation plate 3; the magnetic isolation plate 3 covers the entire air gap M. That is to say, the air gap M region between two adjacent rotors 2 is provided with a magnetic isolation plate 3, so that the two adjacent rotors 2 are completely blocked by the magnetic isolation plate 3. It should also be noted that, with respect to the magnetic isolation plate 3 in this implementation, its side end face facing each rotor 2 can be a plane, a curved surface, or an end face with a pattern. For example, the side end face of the magnetic isolation plate 3 facing the rotor 2 is designed with a raised texture (the texture can be in the shape of a strip). The above situations can theoretically be applicable to the use requirements of this embodiment, and this embodiment does not make an absolute limitation on this.

[0052] As attached Figure 5 As shown, compared with the double stator without magnetic isolation, the synchronous parallel motor using the above magnetic isolation component does not have an upward peak between 50° and 60° on the same horizontal coordinate, indicating that its reversal torque is significantly smaller than that of the double stator without magnetic isolation.

[0053] Taking the second optional embodiment as an example, the stator yoke 11 is formed by stamping and stacking silicon steel sheets; and the magnetic isolation assembly adopts a magnetic isolation plate; the magnetic isolation plate includes a main body 41 located in the middle area of ​​the air gap M, and a pair of magnetic isolation notches 42 located on both sides of the main body 41 along the extension direction of the symmetry axis K of the two different stator parts. Here, the magnetic isolation plate can also be installed in the air gap M as an integral part, but the main body plate does not form a complete barrier between the two adjacent rotors 2. It should also be noted that with respect to the main body 41 under this embodiment, its side end face facing each rotor 2 can be a plane, a curved surface, or a patterned end face. For example, the side end face of the main body 41 facing the rotor 2 is designed with a raised texture (the texture can be in the shape of a strip). The above situations can theoretically be applicable to the use requirements of this embodiment, and this embodiment does not make an absolute limitation on this.

[0054] Based on the above situation, the shape of the notch 42 may be, for example but not limited to, a regular shape such as a circle or a rectangle, or an irregular shape, which is not absolutely limited in this embodiment.

[0055] In addition, based on the above-described magnetic shielding plate with the notch 42, for two adjacent rotors 2, since the end face of each rotor 2 facing the air gap M is an arc surface, for the air gap M in the dimension of the symmetry axis K of two different stator parts arranged in parallel, the width of the air gap M gradually widens from the middle to both sides. That is to say, the center part of the air gap M is the area with the narrowest width. The main plate forms a barrier for the middle area of the air gap M, and does not produce a shielding effect in the area where the width of the air gap M is relatively wide. In this regard, it should be noted that the length of the main board body 41 in the extending direction of the symmetry axis K of the two different stator parts is not less than one-sixth of the length of the air gap M, so as to ensure that the magnetic shielding plate 3 forms an effective magnetic shielding effect on two adjacent rotors 2.

[0056] For the above two different magnetic shielding plates 3, it is further necessary to explain the fixing method of the magnetic shielding plate 3 of this embodiment at the air gap M:

[0057] Taking the first optional case in combination with the drawings as an example, a pair of stator grooves 5 for inserting the magnetic shielding plate 3 are provided at the connection area of every two different stator parts arranged in parallel. This case can be applied not only to the above-mentioned integral magnetic shielding plate 3, but also to the magnetic shielding plate with the notch 42. For the magnetic shielding plate 3 in this case, an interference fit or glue bonding method, for example but not limited to, can be used to fix it to the stator groove 5.

[0058] Taking the second optional case in combination with the drawings as an example, the synchronous parallel-connected integral motor further includes a pair of end covers 8 located at the two shaft side ends of the integral stator; and on at least one side end face of the end cover 8 facing the integral stator, and corresponding to the air gap M along the symmetry axis K of every two different stator parts arranged in parallel, a slot 6 for inserting the magnetic shielding plate 3 is provided. Specifically, in an optional implementation manner, the slot 6 can be a boss with a relatively high aspect ratio protruding from the surface of the end cover 8. The two ends of the boss are arc-shaped, and the inside of the boss is rectangular. For the magnetic shielding plate 3 here, an interference fit or glue bonding method, for example but not limited to, can be used to fix it to the slot 6. In this regard, the slot 6 can be designed on only one end cover 8, or can be designed on both end covers 8. This embodiment does not make an absolute limitation on this. It should be noted that the case of using the slot 6 to fix the magnetic shielding plate 3 can be applied not only to the above-mentioned integral magnetic shielding plate 3, but also to the magnetic shielding plate 3 with the notch 42.

[0059] Regarding the case of using the slot 6 to fix the magnetic shielding plate 3, it should also be noted that in the direction along the symmetry axis K of every two parallel and different stator parts, the length of the slot 6 can be equal to the length of the magnetic shielding plate 3 to be fixed, or can be less than the length of the magnetic shielding plate 3. For example, the slot 6 is only designed at the middle position corresponding to the magnetic shielding plate 3. At this time, for the overall magnetic shielding plate 3, the length of the insertion part for inserting into the slot 6 is also synchronously smaller than the length of the overall magnetic shielding plate 3. This situation can theoretically also achieve the fixing effect on the magnetic shielding plate 3.

[0060] Based on the above situation, it should also be noted that for the case of the magnetic shielding plate 3 with the notch 42 in this embodiment, it can also be deformed as follows:

[0061] The overall magnetic shielding plate 3 only has the main board body 41, which is located in the middle area of the air gap M. At this time, on both sides of the main board body 41 along the symmetry axis K direction of every two parallel and different stator parts, there is no magnetic shielding structure, that is, a magnetic shielding structure is not provided. At this time, the magnetic shielding effect of the magnetic shielding plate 3 on the two rotors 2 is similar to the case of the magnetic shielding plate 3 with the notch 42. For the main board body 41 here, it can be fixed by cooperating with the slot 6 designed on at least one end cover 8.

[0062] In summary, for the synchronous parallel connected motor in this embodiment, there is an air gap M between every two adjacent and parallel rotors 2 along the symmetry axis K of every two parallel and different stator parts. Through the magnetic shielding components distributed at the air gap M, the magnetic fields of every two adjacent and parallel rotors 2 are separated, so as to prevent the magnetic fields of two adjacent rotors 2 from interfering with each other to eliminate the reverse torque and improve the motor efficiency; reduce the running noise of the motor.

[0063] Embodiment 2:

[0064] Please refer to Figures 11 to 14 As shown, on the basis of the synchronous parallel connected motor in Embodiment 1, the magnetic shielding components of the synchronous parallel connected motor provided in this embodiment are made of a high magnetic permeability soft magnetic material (the high magnetic permeability soft magnetic material can be, for example, one or more of iron-silicon alloy (silicon steel sheet), pure iron, low-carbon steel, permalloy or ferrite), and are discontinuously distributed at the air gap M along the symmetry axis K of every two parallel and different stator parts.

[0065] Next, an example of a specific and optional implementation situation will be given in combination with the drawings. The magnetic shielding components include multiple magnetic shielding rods 7 arranged at intervals; the length of each magnetic shielding rod 7 is not greater than the axial height of the rotor 2. The magnetic shielding rod 7 can be cylindrical, or can be quadrilateral or other shapes.

[0066] Based on the above situation, more specifically, in the first optional implementation case, multiple magnetic shielding rods 7 are arranged at equal intervals; that is to say, for the overall magnetic shielding component, it is uniformly distributed along the symmetry axis K of the two different stator parts in parallel at the air gap M.

[0067] In the second optional implementation case, considering that the width of the air gap M formed by two adjacent rotors 2 gradually widens from the middle to both sides, the arrangement density of the multiple magnetic shielding rods 7 gradually decreases from the middle region of the air gap M to both sides.

[0068] Next, it should be noted that regarding the fixing method of the magnetic shielding rod 7 at the air gap M in this embodiment:

[0069] Taking an example of a situation convenient for assembly in combination with the attached drawings, the synchronous parallel-connected integrated motor further includes a pair of end caps 8 located at the two axial ends of the integrated stator; and on at least one end face of the end cap 8 facing the integrated stator, and corresponding to the air gap M along the symmetry axis K of every two different parallel stator parts, there are multiple jacks 9 for inserting the magnetic shielding rods 7. In this regard, the jacks 9 can be designed only on one end cap 8, or can be designed on both end caps 8. This embodiment does not make an absolute limitation on this.

[0070] Here, it should also be noted that for the case where the above magnetic shielding component uses multiple magnetic shielding rods 7, it can also be that the multiple magnetic shielding rods 7 are fixed on the same base, and this base is fixed to the end cap 8 as a whole, so as to realize the simultaneous assembly and disassembly of the multiple magnetic shielding rods 7 as a whole. Therefore, for the fixing method of the multiple magnetic shielding rods 7 at the air gap M, it can be flexibly selected according to the actual situation, and this embodiment does not make an absolute limitation on this.

[0071] As shown in the attached Figure 14 drawing, compared with the non-magnetic-shielding double stator, the synchronous parallel-connected integrated motor using the above magnetic shielding component does not have a protruding peak between the same abscissas of 50° to 60°, indicating that its reverse torque is significantly smaller than that of the non-magnetic-shielding double stator.

[0072] In addition, it should be noted that the magnetic shielding rod 7 in this embodiment can also be replaced with a magnetic shielding sheet, that is, multiple magnetic shielding sheets distributed at intervals along the symmetry axis K of every two different parallel stator parts are used to form the magnetic shielding effect for two adjacent rotors 2.

[0073] In summary, for the magnetic shielding component of this embodiment, although the magnetic shielding effect of using multiple magnetic shielding rods 7 is slightly weaker than that of the magnetic shielding plate 3 in Embodiment 1, it can still meet the use requirement of suppressing the reverse torque.

[0074] In the above specific embodiments, the object, technical solution and beneficial effects of the present utility model have been further described in detail. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

[0075] In the description of the present utility model, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0076] In the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0077] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present utility model is placed habitually during use, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0078] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the component is required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0079] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being above or below the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being above, on top of, and over the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being below, beneath, and under the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

Claims

1. A synchronous parallel connected twin motor, characterized in that, include: A one-piece stator having at least one symmetry axis and a plurality of stator parts symmetrically arranged about the symmetry axis; each stator part comprises a stator yoke having an incomplete annular form and a cavity arranged in the stator yoke; A plurality of rotors are arranged in the cavities of the corresponding stator parts; each parallel adjacent two rotors are not in direct contact, so that an air gap exists between the two rotors along the symmetry axis of each parallel two different stator parts; The magnetic isolation components are distributed at the air gap along the symmetry axes of two different stator parts in parallel to separate the magnetic fields of two adjacent rotors in parallel.

2. The synchronous parallel motor according to claim 1, characterized in that: The magnetic isolation components are made of high magnetic permeability soft magnetic material and are continuously distributed at the air gap along the symmetry axis of each of the two parallel different stator parts.

3. The synchronous parallel conjoined motor according to claim 2, characterized in that: The stator yoke is formed by stamping and stacking silicon steel sheets; and The magnetic isolation component adopts a magnetic isolation plate; the magnetic isolation plate is distributed throughout the air gap.

4. The synchronous parallel-connected conjoined motor according to claim 2, wherein The stator yoke is formed by stamping and stacking silicon steel sheets; and The magnetic isolation assembly adopts a magnetic isolation plate; the magnetic isolation plate includes a main plate body located in the middle area of ​​the air gap, and a pair of magnetic isolation notches located on both sides of the main plate body along the extension direction of the symmetry axis of two different stator parts.

5. The synchronous parallel motor according to claim 4, characterized in that: The length of the main plate body along the extension direction of the symmetry axes of the two different stator parts is not less than one sixth of the air gap length.

6. The synchronous parallel motor according to any one of claims 3 to 5, characterized in that: A pair of stator grooves for inserting magnetic isolation plates are arranged at the connection area of ​​each two different stator parts in parallel.

7. The synchronous parallel motor according to any one of claims 3 to 5, characterized in that: The synchronous parallel conjoined motor further comprises a pair of end covers located at two shaft side ends of the conjoined stator; and A slot for inserting a magnetic isolation plate is provided at a position corresponding to the air gap on a side end surface of at least one end cover facing the integrated stator.

8. The synchronous parallel connected conjoined motor according to claim 1, wherein The magnetic isolation components are made of high magnetic permeability soft magnetic material and are non-continuously distributed at the air gap along the symmetry axis of each of two different parallel stator parts.

9. The synchronous parallel conjoined motor according to claim 8, characterized in that: The magnetic isolation assembly comprises a plurality of magnetic isolation bars arranged at intervals; the length of each magnetic isolation bar is not greater than the axial height of the rotor; and The plurality of magnetic isolation rods are arranged at equal intervals; or the arrangement density of the plurality of magnetic isolation rods decreases gradually from the middle area of ​​the air gap to both sides.

10. The synchronous parallel motor according to claim 8 or 9, characterized in that: The synchronous parallel conjoined motor further comprises a pair of end covers located at two shaft side ends of the conjoined stator; and A plurality of insertion holes for inserting magnetic isolation bars are provided at positions corresponding to the air gaps on the side end surface of at least one end cover facing the integrated stator.

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